Power Brake Unit

Removal & Installation (RAV4, Sequoia, Tacoma & Tundra)

1. Remove master cylinder. See MASTER CYLINDER . On RAV4, remove charcoal canister. On all

2001 BRAKES Disc & Drum - Trucks & Vans models, disconnect vacuum hose. On Tundra and Sequoia, remove scuff plate LH, cowl side trim LH, lower finish panel and No. 2 heater to register duct. On all models, remove brake pedal return spring, clip and clevis pin. On Sequoia, Tacoma and Tundra remove 4 nuts, clevis, brake booster and gasket. Remove 2 stopper rings, brake booster bracket and gasket from brake booster. Remove power brake unit.

2. Install power brake unit. On RAV4 and Tundra, install NEW gasket to power brake unit. Install bracket and stopper rings. Install clevis to operating rod. On all models, attach clevis pin, clip and return spring. Adjust push rod length. See POWER BRAKE UNIT PUSH ROD under ADJUSTMENTS.

3. Install master cylinder with NEW gasket. Connect vacuum hose. Fill master cylinder. Bleed system and check for leaks. Adjust brake pedal, if necessary.

Removal & Installation (Sienna)

1. Remove 2 cowl top vent louvers and outer front cowl top panel. See Fig. 15 . Remove master cylinder. See MASTER CYLINDER .

2. On models without VSC, remove ABS actuator assembly. On models with VSC, disconnect brake lines and vacuum hose from power brake unit. Remove lower instrument panel finish panels to access brake pedal arm. Remove pedal return spring, clip and clevis pin.

3. Remove 4 nuts and clevis, and remove power brake unit.

4. Install power brake unit. Attach clevis pin, clip and return spring. Adjust push rod length. See POWER BRAKE UNIT PUSH ROD under ADJUSTMENTS.

5. Install ABS actuator assembly on models without VSC. Install master cylinder with NEW gasket. Connect vacuum hose. Fill master cylinder. Bleed system and check for leads. Adjust brake pedal, if necessary. Install cowl panel and vent louvers.

2001 BRAKES Disc & Drum - Trucks & Vans

Gasket Connect
Fig. 15: Exploded View Of Power Brake Unit & Cowl Components (Sienna) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

HYDRAULIC BRAKE BOOSTER (LAND CRUISER & 4RUNNER) Removal & Installation

1. Turn ignition switch off. Pump brake pedal at least 40 times (pedal stroke will become lighter and

2001 BRAKES Disc & Drum - Trucks & Vans longer). Draw brake fluid from reservoir with a syringe.

2. On Land Cruiser, remove scuff plate, cowl side trim, lower panels and No. 2 heater duct for access. Remove ABS ECU. Remove charcoal canister. See Fig. 16 .

3. Disconnect connectors from brake booster. Disconnect brake lines from brake booster. Remove clip and clevis pin from inside passenger compartment. Remove 4 mounting nuts, and remove brake booster assembly.

4. To install, reverse removal procedure.

2001 BRAKES Disc & Drum - Trucks & Vans

Exploded View Clevis

Fig. 16: Exploded View Of Hydraulic Brake Booster Mounting Components (Land Cruiser Shown; 4Runner Is Similar)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 16: Exploded View Of Hydraulic Brake Booster Mounting Components (Land Cruiser Shown; 4Runner Is Similar)

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

PARKING BRAKE SHOES (INTERNAL)

2001 BRAKES Disc & Drum - Trucks & Vans

Removal (Land Cruiser)

1. Place matchmarks on disc and rear axle hub. Remove rear disc. Remove tension spring, shoe return springs and shoe strut with spring.

2. Remove rear shoe and adjuster & tension spring. Remove hold-down spring, 2 clips, pin, front shoe and tension spring. Disconnect parking brake cable from lever. See Fig. 17 .

2001 BRAKES Disc & Drum - Trucks & Vans

Corolla Parking Brake
Fig. 17: Exploded View Of Internal Parking Brake Assembly (Land Cruiser) Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Inspection

Clearance between parking brake shoe and lever should be .010" (.25 mm) or less. If clearance exceeds

2001 BRAKES Disc & Drum - Trucks & Vans specification, replace shim under parking brake lever. Shims are available in sizes from .012" (.30 mm) to .035" (.90 mm) in .012" (.30 mm) increments. Use NEW "C" washer when installing lever.

Installation

To complete installation, reverse removal procedure. Apply non-melting grease to sliding surfaces of shoes and adjusting screw threads. Align groove of rear axle shaft flange with service hole on disc. Install disc.

Removal (Highlander & Sequoia)

1. Place matchmarks on disc and rear axle hub. Remove rear disc. Remove two shoe return springs and shoe strut spring. See Fig. 18 . Slide front shoe forward and remove shoe adjuster.

Toyota Highlander Parking Brake Diagram

Fig. 18: Exploded View Of Internal Parking Brake Assembly (Sequoia Shown; Highlander Is Similar)

Courtesy of TOYOTA MOTOR SALES U.S.A., LTD

Fig. 18: Exploded View Of Internal Parking Brake Assembly (Sequoia Shown; Highlander Is Similar)

Courtesy of TOYOTA MOTOR SALES U.S.A., LTD

2. Using needle nose pliers, disconnect and remove anchor spring and tension spring from front shoe. Remove front and rear shoe. Disconnect parking brake from brake shoe lever.

2001 BRAKES Disc & Drum - Trucks & Vans

Inspection

Clearance between parking brake shoe and lever should be .010" (.25 mm) or less. If clearance exceeds specification, replace shim under parking brake lever. Shims are available in sizes from .012" (.30 mm) to .035" (.90 mm) in .012" (.30 mm) increments. Use NEW "C" washer when installing lever.

Installation

To complete installation, reverse removal procedure. Apply non-melting grease to sliding surfaces of shoes and adjusting screw threads. Align match marks on disc and axle hub. Install disc.

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